Meet 'The Flash' actor Ezra Miller — Hollywood's next big superhero

Ezra Miller will play DC's The Flash in the upcoming "Justice League," which will be out in 2017. The 23-year-old actor made his big debut with the rest of the cast at the 2016 San Diego Comic-Con. He stole the show both onscreen and in the movie's debut trailer.

Miller has already become something of an indie darling over the years. Now, he's on his way to becoming a huge star.

Here's what you need to know about Ezra Miller, Hollywood's next big superhero.

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Ezra Miller was born on September 30, 1992 in Wyckoff, New Jersey.

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The town is about 25 miles from Manhattan.

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Miller grew up with a speech impediment. At age six, he started to train as an opera singer to help him overcome it.

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Miller's acting career began when he was just 16-years-old.

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His first feature length movie was "Afterschool." Miller plays an internet-addicted prep-school student who "captures on video camera the drug overdose of two girls."

The actor followed up "Kevin" with "The Perks of Being a Wallflower," where he played Patrick.

His performance was singled out by critics, who noted how different it was from his previous performance.

The film was a true showcase of his warmth, charisma, and comic timing.

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The actor is very open about his identity.

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While promoting "Perks," in which he plays a character meant to be a queer role model, Miller talked about his identity with Out Magazine.

"I'm queer. I have a lot of really wonderful friends who are of very different sexes and genders. I am very much in love with no one in particular. I've been trying to figure out relationships, you know? I don't know if it's responsible for kids of my age to be so aggressively pursuing monogamous binds, because I don't think we're ready for them," Miller said.

"The romanticism within our culture dictates that that's what you're supposed to be looking for. Then [when] we find what we think is love— even if it is love — we do not yet have the tools. I do feel that it's possible to be at this age unintentionally hurtful, just by being irresponsible — which is fine. I'm super down with being irresponsible.

"I'm just trying to make sure my lack of responsibility no longer hurts people. That's where I'm at in the boyfriend/girlfriend/zefriend type of question."

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Miller continued to prove his range with roles in "The Stanford Prison Experiment" and Amy Schumer's "Trainwreck."